Attorney Benjamin Crump (L) holds his hands up while speaking as Tiffany Crutcher (2nd R), sister of Terence Crutcher, the Tulsa motorist who was shot and killed by police, stands during a news conference at the Rev. Al Sharpton's National Action Network headquarters in New York, U.S., September 21, 2016. REUTERS/Shannon Stapleton

Tiffany Crutcher (C), sister of Terence Crutcher, the Tulsa motorist who was shot and killed by police, stands with attorney Benjamin Crump (L) during a news conference at the Rev. Al Sharpton's National Action Network headquarters in New York, U.S., September 21, 2016. REUTERS/Shannon Stapleton

Tiffany Crutcher (C), sister of Terence Crutcher, the Tulsa motorist who was shot and killed by police, stands with attorney Benjamin Crump (L) during a news conference at the Reverend Al Sharpton's National Action Network headquarters in New York, U.S., September 21, 2016. REUTERS/Shannon Stapleton

Tiffany Crutcher (C), sister of Terence Crutcher, the Tulsa motorist who was shot and killed by police, stands with attorney Benjamin Crump (L) during a news conference at the Reverend Al Sharpton's National Action Network headquarters in New York, U.S., September 21, 2016. REUTERS/Shannon Stapleton

The Boeing logo is seen at their headquarters in Chicago, in this April 24, 2013 file photo. REUTERS/Jim Young/File Photo

MBA graduates from Columbia University during commencement in a file photo. REUTERS/Chip East

Paddy Cosgrave, co-founder of Web Summit, poses for a portrait after an interview with Reuters in Lisbon, Portugal, September 21, 2016. REUTERS/Rafael Marchante

Italian Prime Minister Matteo Renzi addresses the United Nations General Assembly in the Manhattan borough of New York, U.S. September 20, 2016. REUTERS/Eduardo Munoz